Offset between reservations
Enabling this option you will add a blocked time span between two sequential reservations. You can set the duration of this time span.
If you need a "30" minutes break among two reservations then you can enable this option and set the duration of the offset to "30" minutes.
That means that if you have a reservation at 9:00 that ends at 11:00 the next available slot will be only at 11:30.